/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
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package org.apache.shardingsphere.infra.binder.context.segment.select.projection.impl;

import org.apache.shardingsphere.database.connector.core.type.DatabaseType;
import org.apache.shardingsphere.sql.parser.statement.core.enums.AggregationType;
import org.apache.shardingsphere.sql.parser.statement.core.segment.dml.item.AggregationProjectionSegment;
import org.apache.shardingsphere.sql.parser.statement.core.value.identifier.IdentifierValue;
import org.junit.jupiter.api.Test;

import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.mockito.Mockito.mock;

class AggregationDistinctProjectionTest {
    
    private final AggregationDistinctProjection aggregationDistinctProjection = new AggregationDistinctProjection(
            0, 0, AggregationType.COUNT, new AggregationProjectionSegment(0, 0, AggregationType.COUNT, "(DISTINCT order_id)"), new IdentifierValue("c"), "order_id", mock(DatabaseType.class));
    
    @Test
    void assertGetDistinctColumnName() {
        assertThat(aggregationDistinctProjection.getDistinctInnerExpression(), is("order_id"));
    }
}
